Lab 9 Dynamic Binding and Virtual Functions


Re-write your derived classes from Lab 8 to override a pure virtual function in the base class to compute the area of the shapes. Re-write the application from Lab 8 to create and store input shapes as base class pointers. In addition, modify the application to allow the user to create and store any number of shapes (use an STL class to store the base class pointers, i.e. vector<Shape *> shapes). After the user has finished creating shapes, compute and print the area for all the shapes in a single loop using only the base class pointers with dynamic binding.